The projected decline in nitrogen oxides emissions in the U.S. from 2024 to 2028 shows a clear downward trend, decreasing from 5.03 million metric tons in 2024 to 2.87 million metric tons in 2028. This forecast indicates consistent year-on-year reductions, with the most significant drop anticipated between 2027 and 2028. In 2023, the emissions stood at 5.63 million metric tons. The compound annual growth rate (CAGR) from 2024 to 2028 averages out to a notable decline, emphasizing ongoing efforts to reduce these emissions.

Future trends to watch for include:

Implementation of stricter environmental regulations that could further reduce emissions.
Advancements in cleaner technologies and the transition to renewable energy sources.
Potential economic and industrial growth, affecting emission levels positively or negatively.
Public and political pressure towards greener policies and environmental sustainability initiatives.